The All-Rounder Carbine Grit Cutter Bolt Carrier Group (ARC BCG) is our individually proof tested and mag particle inspected bolt with an inner diameter bolt run that is machined tighter than competitor offerings. We gas nitride the bolt carrier before applying a DLC finish to give you a much more durable product. This gives the bolt a “Just Right” gas seal inside of the carrier which increases gas efficiency and service life. Nearly all M16 BCG manufacturers do not compensate for the lack of chrome plating in a TDP bolt carrier, but we make up the difference with our tight tolerance machining. Our Grit Cutter BCGs come with machined debris channels, extended carrier stability rails, and belly relief cuts for loaded magazine insertion. Our bolt is shot-peened Crucible Carpenter 158®, and individually proof tested to guarantee service life. Our machined, chrome lined gas key is sealed against the carrier with Permatex gasket sealant and is affixed with our OCKS fasteners at 53 in/lbs w/thread locker. Our extractors are billet machined 4140 and manganese phosphate coated to retain grip against the casing rim, and utilize genuine Sprinco 5 coil extractor springs with rubber insert for added reliability and service life. Features of Arc C158 Bolt Carrier Group – Dlc, 5.56Mm, .300Blk, Individual Hp, Mpi Bcg: Carrier-belly scalloped relief cuts to assist with loaded magazine insertion. Extended rails for added carrier stability during cycling. Machined sand cuts limit granular resistance between upper receiver contact surfaces. 8620 M16 Carrier, tighter ID for TiN case depth Shot-peened C158 bolt, individually proof tested Machined debris channels for enhanced reliability in adverse conditions Diamond Like Carbon coated Machined extractor installed with insert and Sprinco 5 coil spring Serrated OCKS fasteners Laser engraved with LS insignia so you can cyberbully an impoverished Redditor Package Contents: Lead & Steel Arc C158 Bolt Carrier Group – Dlc, 5.56Mm, .300Blk, Individual Hp, Mpi Bcg
Dad –
I picked up this bolt at my LGS and it runs flawlessly. Works great, fits great and after around 1k rounds there have been zero failures. Would buy again
HaydenTheHunter –
This is a rock solid BCG. The DLC finish is well applied and way more slick than the standard parkerized finish. Comparing one of these to a MilSpec carrier with the same round count is shocking. This DLC finish wears way less. Definitely a good buy and have had no issues with the 3 I currently run on my rifles.
John –
LOVE THIS BCG bought one like 4 months ago already have 2000 rounds through it can’t complain about it at all definitely recommend it